Spool.



W. A. VIETOR.

s 1 o 0L. APPLIOATION FILED FEB. 24, 1911.

I 1,011,532. v Patented Dec.12,1911.

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outta]; STATES PATENT OFFICE;

WILLIAM A. VIETOR, OF EUREKA, CALIFORNIA.

SPOOL.

Application filed February24, 1911. Serial No. 610,532.

Specification of Letters Patent.

Patented Dec. 12, 1911.

To all whom it may concern:

State of California, have invented a new and useful Spool, of which the following is a specification.

that in hauling logs from the forest where they are cut, to the landings where they are loaded upon cars for transportation to the mills where they are sawed into lumber, a wire cable is employed, the cable being wound upon the drum of an engine. The

roads over which the logs are hauled, are as a rule very crooked, and it is necessary to place spools along all the curves of the road, over which spools the wire cable which draws the logs, travels, so as to lead the logs fairly along the road, around the curves therein. The load on these road spools is very heavy, and the necessity of lubrication is great. The method of applying oil to the bearings of the road spools from a can, by hand, is not satisfactory, and the expedient of boring a hole in the journal of the spool is expensive in manufacture. The ordinary press feed cup cannot be used, since the cable is likely to jump from the spools, and cut and tear away anything projecting above the flange of the spool.

It is the object of this invention to provide a spool having a lubricator thoroughly eflicient to reduce the friction incident to the rotation of the spool, the construction, however, being such, that no part of the lubricating mechanism will be injured, should the cable which is passed about the spool,

' jump therefrom.

Another object of the invention is to provide a lubricator which may be cast into the spool, no machine work upon the lubri-,

cator being necessary, subsequent to the casting of the spool.

With the above and other objects in view which will appear as the description provention in end elevation; Fig. 2 is a side Be it known that I, WILLIAM A. VIETOR, a citizen of the United States, residing at Eureka, in the county of Humboldt andelevation, wherein certain elements are sec tionally shown; and Fig. 3 is a transverse section upon the line AB of Fig. 2.

The spool is denoted generally by the numeral '1, the same comprising a drum 2 and avbearing 3, connected by longitudinally ex- By way of explanation, it may be stated tended ribs 4, there being openings 5 between the ribs. In one of these openings 5, is mounted a tube 6, the inner end of which is closed by a plug 7 firmly seated in the tube. with one end wall 8 of the drum, the end wall 8 preferably inclosing the tube 6 closely, as indicated at 9 in Fig. 1. The ad jacent faces of the drum 2 and the bearing 3 are recessed longitudinally, as shown at 10, to receive the tube 6. In its interior, the tube 6 is threaded adjacent its outer end, to receive a screw plug 11, having a polygonal opening 12 in its end, adapted to be engaged by a wrench or a key, to rotate the plug 11 in the tube 6. Intermediate its ends, and relatively near to the fixed plug 7, a pipe 14 extends transversely through the side wall of the tube 6, and through the side wall of the bearing 3, the construction being such that, although the pipe 14 is completely housed within the contour of the walls of the tube 6 and of the bearing 3, the pipe forms a communication between the tube and the bearing, so that when the plug 11 is rotated, the lubricant will be forced out of the tube6, through the pipe 14, and into the interior of the bearing 3. The bearing 3 of course carries the spindle 15 upon which the spooll is journaled for rotation, about the spool, intermediateits flanges 16, a cable 17 is passed. It will be seen that the tube 6 and the pipe 14 are separate elements from the drum 1, the construction being such "that the lubricator is a separate element from the drum 1, the spool in the ordinary process of manufacture, being cast about the lubricator.

The tube 6 is ordinarily filledwith a relatively stilf lubricant, which will melt and flow through the pipe 14, as soon as the bearing 3 becomes heated to any appreciable extent. Obviously, by inserting a wrench or key into the opening 12 in the plug 11, the latter may be advanced, forcing the lubricant into the interior of the bearing 3. As clearly shown in Fig. 2, no part of the tube 6 or of the plug 11, projects beyond the end The outer end of the tube 6 is flush Wall 8 of the spool, and should the cable 17 slip from the drum 2, the lubricator Will be in no Wise injured.

Having thus described the invention,

What is claimed is In a device of the class described, a sheave end of the pipe for advancing a lubricant in 1 the pipe; and an auxiliary pipe extended through the bearing, and forming a com munication between the interior of the bearing and the interior of the first named pipe, the pipes being separate elements from the sheave.

In testimony that I claim the foregoing as my own, I have hereto afli zed my slgnature in the presence of two wltnesses.

WILLIAM A. VIETOR.

Witnesses:

J. H. HUNTER, W. B. RIGBY.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, D. C. 

